Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application
n-type ZnO:Cu photoanodes were fabricated by simple spray pyrolysis deposition technique. Influence of low concentration (range ~10−4–10−1%) of Cu doping in hexagonal ZnO lattice on its photoelectrochemical performance has been investigated. The doped photoanodes displayed 7-time enhanced conversion...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/928321 |
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| author | Rekha Dom Lijin Rose Baby Hyun Gyu Kim Pramod H. Borse |
| author_facet | Rekha Dom Lijin Rose Baby Hyun Gyu Kim Pramod H. Borse |
| author_sort | Rekha Dom |
| collection | DOAJ |
| description | n-type ZnO:Cu photoanodes were fabricated by simple spray pyrolysis deposition technique. Influence of low concentration (range ~10−4–10−1%) of Cu doping in hexagonal ZnO lattice on its photoelectrochemical performance has been investigated. The doped photoanodes displayed 7-time enhanced conversion efficiencies with respect to their undoped counterpart, as estimated from the photocurrents generated under simulated solar radiation. This is the highest enhancement in the solar conversion efficiency reported so far for the Cu-doped ZnO. This performance is attributed to the red shift in the band gap of the Cu-doped films and is in accordance with the incident-photon-current-conversion efficiency (IPCE) measurements. Electrochemical studies reveal an n-type nature of these photoanodes. Thus, the study indicates a high potential of doped ZnO films for solar energy applications, in purview of the development of simple nanostructuring methodologies. |
| format | Article |
| id | doaj-art-014f54b909e74d99b0e1d16a7e425acb |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-014f54b909e74d99b0e1d16a7e425acb2025-02-03T01:20:22ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/928321928321Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting ApplicationRekha Dom0Lijin Rose Baby1Hyun Gyu Kim2Pramod H. Borse3Solar H2 PEC Lab., International Advanced Research Centre for Powder Metallurgy and New Materials, Balapur PO, Hyderabad, Andhra Pradesh 500 005, IndiaSolar H2 PEC Lab., International Advanced Research Centre for Powder Metallurgy and New Materials, Balapur PO, Hyderabad, Andhra Pradesh 500 005, IndiaDivision of High Technology Materials Research, Korea Basic Science Institute (KBSI), Busan 618-230, Republic of KoreaSolar H2 PEC Lab., International Advanced Research Centre for Powder Metallurgy and New Materials, Balapur PO, Hyderabad, Andhra Pradesh 500 005, Indian-type ZnO:Cu photoanodes were fabricated by simple spray pyrolysis deposition technique. Influence of low concentration (range ~10−4–10−1%) of Cu doping in hexagonal ZnO lattice on its photoelectrochemical performance has been investigated. The doped photoanodes displayed 7-time enhanced conversion efficiencies with respect to their undoped counterpart, as estimated from the photocurrents generated under simulated solar radiation. This is the highest enhancement in the solar conversion efficiency reported so far for the Cu-doped ZnO. This performance is attributed to the red shift in the band gap of the Cu-doped films and is in accordance with the incident-photon-current-conversion efficiency (IPCE) measurements. Electrochemical studies reveal an n-type nature of these photoanodes. Thus, the study indicates a high potential of doped ZnO films for solar energy applications, in purview of the development of simple nanostructuring methodologies.http://dx.doi.org/10.1155/2013/928321 |
| spellingShingle | Rekha Dom Lijin Rose Baby Hyun Gyu Kim Pramod H. Borse Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application International Journal of Photoenergy |
| title | Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application |
| title_full | Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application |
| title_fullStr | Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application |
| title_full_unstemmed | Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application |
| title_short | Enhanced Solar Photoelectrochemical Conversion Efficiency of ZnO:Cu Electrodes for Water-Splitting Application |
| title_sort | enhanced solar photoelectrochemical conversion efficiency of zno cu electrodes for water splitting application |
| url | http://dx.doi.org/10.1155/2013/928321 |
| work_keys_str_mv | AT rekhadom enhancedsolarphotoelectrochemicalconversionefficiencyofznocuelectrodesforwatersplittingapplication AT lijinrosebaby enhancedsolarphotoelectrochemicalconversionefficiencyofznocuelectrodesforwatersplittingapplication AT hyungyukim enhancedsolarphotoelectrochemicalconversionefficiencyofznocuelectrodesforwatersplittingapplication AT pramodhborse enhancedsolarphotoelectrochemicalconversionefficiencyofznocuelectrodesforwatersplittingapplication |